dns6.yutex.ru has one IP number. spb.dj, 1kid.ru, dimaz.ru, iliru.ru, alexsg.ru and at least 62 other hosts use this as a nameserver. yutex.ru is a domain controlled by two nameservers at yutex.ru themselves. They are on different IP networks. Incoming mail for yutex.ru is handled by one mailserver at ru. yutex.ru has one IP number , but the reverse is yutex01.yutex.ru. dns6.yutex.ru is hosted on a server in United States even though the hostname implies Russian Federation.